Gas-engine governor and auxiliary air-inlet.



B. T. McCANNA & E. R. KLEMM. GAS ENGINLGGVERNOR AND AUXILIARY AIR INLETAPPLICATION F!L ED.SEPT. Il, |916.

1,298,068- v Patented Mur. 25, i918..

IIIIIE mv ZZ ran smarte PATENT critica.

BENJAMIN T. MCGANNA AND EMIL It. RLEMM, or CHICAGO, ILLINOIS.

GAS-ENGINE GOVERNOR A-ND 'AUXILIARY AIR-INLET.

. To all whom it may concern.:

Be it known that we, BENJAMIN T. MC-

-CANNA and EMIL R. KLEMM, citizens of the United States, and residentsof the city, of Chicago, in the county of Cook and State of Illinois,have invented certain new and useful Improvements in (las-EngineGovernors and Auxiliary Air-inlets; and we do hereby declare that thefollowing is a full,

clear, and exact description of the saine, reference being had to theaccompanying drawings, and to the numerals of reference marked thereon,which forni a part of this specification.

This invention relatesto a gas engine governor mechanism adapted toutilize the dynamic effect of flow of the inlet fuel mixv ture to theengine, to move a flow impedance kto be connected to the manifold of anen# gine, and provided with an impedance disk mov-ably lmounted thereinsubJect to the dynamic as well as suction effect of flow of fuel mixturefrom the carbureter into the intake manifold, and movable automaticallyto different adjusted positions` acc'ordingto conditions of suction andfiow, to impede the flow and thereby afford a limitation upon themaximum output from the engine both in power and speed by regulating theflow of fuel mixture thereto.

It is also an object; of this invention to construct. a governormechanism embodying a cylindrical section or casing adapted to beconnected between the carbureter and intake manifold ot' the engine, andprovided with an impedance disk movable against spring stress toward andwithin a restricted portion of said casing according to vtlie conditionsof suction yand flow induced by the engine. and with means limiting themovement. of said impedance disk to a. certain predcterinined adjustedposition whereby the extent of interference of flow of fuel mixturetherepast ispredeterniincd, thereby governing the output tothe engineSpecification of Letters Patent.

Patented nain 25, iets.

y Application led September 11, 1916.A Seri'al No. 119,556.

by controlling the flow of fuel mixture thereto.

It is also an object of this invention to construct a governor mechanismwherein an impedance disk is mounted between the oat-v let from thecarbureter and the inlet of the fuel manifold of an engine, subject tethe flow therethrough of fuel mixture from the carbureter, and operatingto impede the flow certain predetermined amounts to gov y lern thepossible output of the engine, and operating when moved into an extremeposition, to admitan additional supply of yair into the fuel mixture asit flows into the manifold.

It is finally an object of this invention to construct a fuel governorand-auxiliary air supply for 'a' hydro-carbon motor operatedautomatically according to conditions of flow of fuel mixture to theengine. serving to impede th'e How according to certain coni ditions ofoperation to govern the output of the engine, and serving further topermit an additional supply of air into the mixture dependent upon theadjustment of the device,4

The invention (in a preferred form) is illustrated in the drawings andhereinafter more fully described.

On the drawings:

Figure 1 is a fragmentary elevational view illustrating a deviceembodying the principles of our invention, connected he- 'tween thecarbureter and manifold of a Fig. is a fragmentary view partly broken flaway and shown in section of an auxiliary attachment for the governordevice.

As shown in the drawings:

The reference numeral 1, indicates' a pipe section member or easingprovided with an attaching flange 2, at the upper end thereof, andanother. flange 3, at the lower end thereof, and with the inner wall ofthe casing restricted or convergent upwardly. from a point near thelower end of the device' toward the upper end thereof. An integral lesdiametrically disposed cross-piece or member -l, is formed across theupper end of the device, and is provided` with a boss 5, through whichan axially disposed aperture or passage is provided, and communicatinglaterally into 4said passage is another passage (i, drilled throughfromone end of saidl cross-piece Ll. A threaded plug 7 having a smallpassage therethrough, is threaded into the outer enlarged end of thepassage 6, flush with the endsurface'of the yflange Slid-V able throughthe tubular boss 5, is a stem 8, having a reduced portion 9, near itslower end, and at its extreme lower end threaded and having securedthereon an impedance disk 10, with a plurality ofaperturesll,therethrough, the diameter of said disk being less than the greatestdiameter of the interior'of the casing l1, andislightly greater than thesmallest diameter of the restricted portion. of said casino'. A nut 12,is threaded upon Vthe upier end .of 'the stem 8, `and is retained fromcisengagement therewith by a. Cotter-.pin lfthus serving to limitthedown-z, ward movement ofsaid stem 8, as clearly shown in Fig. 2. Acoiled compression spring 14., is seated upon the upper surface of theimpedance disk l0, and bears at itsupper end beneath said cross-piece 4,serv-- ving normally to hold the impedance disk downwardly lin the lowerenlarged end of the casing 1. Threaded through said crosspiece 4, is along bolt or screw 15, provided with a lock nut 16, the lowerend of saidbolt forming a stop for the impedance disk 10, in its upward movement asshown in Fig. 3, so that by adjustment of said bolt into differentpositions, the limiting position of said impedance disk 10, in itsupward movement may be determined. The'upper flange 2, of the device isbolted through an attaching liange 17, formed on an intake manifold pipe18, shown fragmentarily in Fig. 1, and secured to the lower flange 3, ofthedevice,l is the" attaching Dflange'of a Acarbureter 19, also shownonly fragmentarily in Fig. 1.

As shown in Fig. 6, the small aperture inlet air plug 7, may be replacedby a pet-cock 20, having a priming cup 21, so that by ad-y justmenteithe valve of the 'pet-cock,` the inflow `of air can be regulated andfurthermore, the pet-cock may be used to introduce fuel or other fluidsfor Vpriming or other purposes. I

The operation is as follows:

When the `engine is ingoperatiom'a flow of fuel mixture from thecarbureter 19,takes place to the intake manifold 18, of the engine,through thecasing member 1, of the device embodying the principles of myinvention, and the suction effect -as well as the dynamic effect of theflow into the manifold 18, is exerted upon the impedance disk 10, and,as the suction or rate of flow increases, the impedance disk 10, iscaused to move upwardly against the compression of its spring 14. Suchmovement of the disk ll, causes thehsame to move into the restrictedportion of the casing l. thus limiting the flow of fuel mixture aroundthe periphery of said impedance disk, although, of course, a certainflow may take place through the apertures 11, therein, and'thislimitingeii'eet' or control of fuelserves to governV the maximumpossible output of the engine, and therefore the speed in its relationto power output.

When the impedance disk 10, moves npwardly a certain amount,'thereduce'd portion 9, of ythe stem 8, moves upwardly such that` the innerend of the passage 6, cored through the cross-piece l, is opened-and anvin et supply of air is thus providefd, which i'sdraw'n downwardlythrough the tubular boss 5, and deflected by the disk 10, radially,outwardly to insure a thorough intermixture thereof with the fuelmixture fronrthe carbureter. vAdjustment of theknut 12, serves tol varythe initial stress upon the spi-ingle, `which resists movement of theimpedance disk and 'adjustn'ient of the screw er bolt 15, serves tochange the limiting vposition of movement of the disk. y y f Ve areawarethat various details of construction may be varied through a wide`range without departing from the principles of this'invetion, and wetherefore do not purpose. limiting the patent granted other# wise thannecessitated by the prior art.

TvVe claim as our invention: P

1.' In a governor device of the class de-v scribed, a easing memberinteriorly tapered, an impedance .disk movable therewithin to .vary thearea ofpassage between the'periph- `ery of said disk and the Walls ofthe casing i member, means resisting .movement of said disk, adjustablemechanisms for limiting the extreme movements of said disk and Ameansadapted by movement of the disk to admit air into the fuel mixture tovary the'quality' of the fuel mixture.

. Ina governor device ofgthe class described, an interior-ly tapered'asiig member, animpedance disk movable therein -to vary the areaofpassage through said member, means resisting movement of said disk, 115Amechanism adjustable in said casing member` to limit the movement ofsaid disk by contact therewith and means adapted to admit air into themixture as the impedance disk restricts the passage through the'member.

3. In a governor deviceof the class de. scribed, a casingV member havinga restricted passage therethrough, an impedance disk lof less diameterthan the greatest interior diameter of said casing member', a stem onwhich said disk .is mounted having a reduced portion, means associatedwith Vsaid stem to limit the extent of movement of said disk and stem inone direction, means adjustable in the casing member to limit the extentof movement of said stem and disk in the other direction and a passageadapted to communicate with -the reduced portion of the stem to admitairv around the stem into the casing when said stem and disk are movedinone direction. .l

et.v In a device of the class described the lcombination of -a tubularcasing, having attaching means at earch end and a tapered passagewaytherethrough, a valve resiliently mounted 1n the passageway and operableby suction to restrict the passageway, said valve' being provided with aplurality of perforations afording a constant area of communicationthrough the casing and adapted to separate the fuel mixture in itspassage through the casing, into a plurality of streams. l f

5. In a governor` device of the class rdescribed, a casing member, animpedance disk movable therewithin to vary the area ot' passage throughsaid casing member, means resisting movement of said disk, and mechanismoperatingto admit an additional supply of Aair-into the mixture flowingthrough said device as the area of passage through said casing member isreduced.

G. In a governor device of the class described, ,an interior-ly taperedcasing member, an impedance disk movable against spring stress withinsaid member to reduce the area of passage therethrough, mechanismoperating to admit/an additional supply of air into theA luid mixtureflowing through said casing member as the area of passage through saidcasing member is varied, and .means limiting the extent of move- 'mentof said disk.

7 In a device of the class described the combination with a carbureterand engine intake pipe 'of'an attachment adapted t0 be interposedtherebetween and comprising a tubular casing'having attaching' means ateach end and a tapered passageway therethrough, a valve resilientlymounted in the passageway and operable by suction in the intake pipe torestrict said passageway, and means for delivering the vfuel mixturefrom the carbureter side of the valve tothe intake pipe side of thevalve'in a plurality ointermixing streams.

8. In an autom the class described the combination with an integraltubular rasing formed with. a tapered tubular passageway therethrough,at-- taching means at each end and a support for holding a stem axiallyin the passageway, of a stem mounted in the support, a spring controlledvalve on the stem movable axially in the passageway and operatedbysuction to yrestrict said passageway, and adjustable means for limitingthe movement of the f valve by suction.

In testimony' whereoi:l we have hereunto subscribed our names in thepresence of two subscribing witnesses. ,I

BENJAMIN T. MGCANNA. EMIL R. KLEMM.

atie regulating device ofv

